Question

Water from a tap emerges vertically down with a initial speed of 2m per second the cross sectional area of tap is 10cm square assume that pressure is constant throughout the stream of water and that the flow is steady. The cross sectional area of the stream 0.25m below the tap is

Answer 1

according to eqn of continuity,

av=a'v'

we can find that area 0.25m below will be equal to 0.8msq. ( may be)